Shallow Copy public properties between unrelated objects which has same property name , this can also copy the fields from derived class to base class and maintain a pure base class object . (useful when passing parameter to dapper)

ObjectExtensions.cs

 public static void CopyMatchingProperties<TResult, TInput>(this TInput input, TResult result)
            where TResult : class
            where TInput : class
        {

            var properties = typeof(TResult).GetProperties(BindingFlags.Instance | BindingFlags.Public).ToList();
            var propertiesInput = typeof(TInput).GetProperties(BindingFlags.Instance | BindingFlags.Public).ToList();

            properties.ForEach(p =>
            {
                var value = p.GetValue(input);
                //if (value != null)
                {
                    var pdest =
                        propertiesInput.FirstOrDefault(i => i.Name.Equals(p.Name) && p.PropertyType == i.PropertyType);
                    if (pdest != null)
                    {
                        pdest.SetValue(result, value);
                    }
                }

            });

        }
        
         public static TEntity CopyPropertisToNewInstance<TEntity>(this TEntity input)
            where TEntity : class, new()
        {
            var result = new TEntity();
            input.CopyMatchingProperties(result);
            return result;
        }